한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제27권3호
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  • Pages.326-336
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  • 2011
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
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라만 라이다의 석영 채널을 이용한 고도별 황사 농도 산출

A Retrieval of Vertically-Resolved Asian Dust Concentration from Quartz Channel Measurements of Raman Lidar

  • Noh, Young-Min (Department of Environmental Science & Engineering, Gwangju Institute of Science & Technology) ;
  • Lee, Kwon-Ho (Department of Satellite Geoinformatics Engineering, Kyungil University) ;
  • Lee, Han-Lim (Department of Atmospheric Sciences, Yonsei University)
  • 투고 : 2011.01.20
  • 심사 : 2011.05.11
  • 발행 : 2011.06.30
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초록

The Light Detection and Ranging (Lidar) observation provides a specific knowledge of the temporal and vertical distribution and the optical properties of the aerosols. Unlike typical Mie scattering Lidars, which can measure backscattering and depolarization, the Raman Lidar can measure the quartz signal at the ultra violet (360 nm) and the visible (546 nm) wavelengths. In this work, we developed a method for estimating mineral quartz concentration immersed in Asian dust using Raman scattering of quartz (silicon dioxide, silica). During the Asian dust period of March 15, 16, and 21 in 2010, Raman lidar measurements detected the presence of quartz, and successfully showed the vertical profile of the dust concentrations. The satellite observations such as the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) confirmed spatial distribution of Asian dust. This approach will be useful for characterizing the quartz dominated in the atmospheric aerosols and the investigations of mineral dust. It will be especially applicable for distinguishing the dust and non-dust aerosols in studies on the mixing state of Asian aerosols. Additionally, the presented method combined with satellite observations is enable qualitative and quantitative monitoring for Asian dust.

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참고문헌

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